C++上机练习

#include<iostream.h>void main(){double b,w,h;cout<<"请输入身高（cm）：";cout<<"h"<<"  ";cin>>h;cout<<"请输入体重（kg）：";cout<<"b"<<"  ";cin>>b;w=h-100;if(b>=1.2*w){cout<<"超重"<<endl;}else if(b<=0.8*w){cout<<"偏瘦"<<endl;}else if(0.8*w<=b<=1.2*w){cout<<"正常体重"<<endl;}}